I looked into this a few years ago

A hell of a lot of hours needed to get round everyone but very well worth it

Only probs i see these days is the usuall ebay

I have and still do spend a fortune with my dealer but just latly have noticed i can buy snap on from ebay cheaper , Having said that i have resisted as im loyal and would rather have the back up etc that comes with a dealer , My only worry is most only look at price and forget what else you get when you buy from a dealer UNTIL they want warranty etc and they find they havent got any

Good luck with it mate , im sure you will enjoy it